Temperature check.

[VanGoghComplex]

Quick profile of my system:

Alphacool Laing DDC310
to
Gigabyte GTX 1080 Waterforce WB (full cover water block)
to
Swiftech MCR140-QP
to
Heatkiller IV Basic Intel Acetal
to
Swiftech MCR240-QP
back to res, back to pump.

I'm running my i5-7600k with a 4.6GHz XMP profile and my 1080 with a +75 core and +600vram offset at stock voltages.

This is all in an Enthoo Evolv ATX.

My system, under heavy consistent load (Titanfall 2, for example) reaches the low to mid 60s on the CPU after an hour or so of play. That seems high to me.

I'm not sure where to move from here to lower those temps, but I've got a few ideas.

If I'm creative, I can add 2.140mm of 30mm rad to the front of the chassis. That is about as much radiator as I can cram into the system.

The other idea is to open up the Evolv with one or more of the various mods available on the market for improving airflow, like vented front and top covers.

Finally, I'm not sure if a DDC is really the best option for this setup. I've got one of the lowest restriction CPU blocks on the market, and understand GPU full cover blocks to be generally not restrictive. I'm wondering if a D5 would help things.

Where do you guys think the deficiency lies?

 

[Deleted member 278999]

Quick profile of my system:

Alphacool Laing DDC310
to
Gigabyte GTX 1080 Waterforce WB (full cover water block)
to
Swiftech MCR140-QP
to
Heatkiller IV Basic Intel Acetal
to
Swiftech MCR240-QP
back to res, back to pump.

I'm running my i5-7600k with a 4.6GHz XMP profile and my 1080 with a +75 core and +600vram offset at stock villages.

This is all in an Enthoo Evolv ATX.

My system, under heavy consistent load (Titanfall 2, for example) reaches the low to mid 60s on the CPU after an hour or so of play. That seems high to me.

I'm not sure where to move from here to lower those temps, but I've got a few ideas.

If I'm creative, I can add 2.140mm of 30mm rad to the front of the chassis. That is about as much radiator as I can cram into the system.

The other idea is to open up the Evolv with one or more of the various mods available on the market for improving airflow, like vented front and top covers.

Finally, I'm not sure if a DDC is really the best option for this setup. I've got one of the lowest restriction CPU blocks on the market, and understand GPU full cover blocks to be generally not restrictive. I'm wondering if a D5 would help things.

Where do you guys think the deficiency lies?

What's your ambient temperature?

 

[VanGoghComplex]

What's your ambient temperature?

I'd probably guess it around 23/24c. Possibly higher, but not much.

 

[Deleted member 278999]

I'd probably guess it around 23/24c. Possibly higher, but not much.

​

Where would you say your fans are spinning RPM wise?

 

[VanGoghComplex]

​

Where would you say your fans are spinning RPM wise?

Initially, I kept them around 50%. 3 Gentle Typhoons in the front, and 3 Corsair ML140s in the top and on back, pushing through the rads. Lately I set it to the "silent" profile on my motherboard, to see if the game reacting would help, but it doesn't seem to have.

 

[Deleted member 278999]

Initially, I kept them around 50%. 3 Gentle Typhoons in the front, and 3 Corsair ML140s in the top and on back, pushing through the rads. Lately I set it to the "silent" profile on my motherboard, to see if the game reacting would help, but it doesn't seem to have.

Have you tried turning up the pump speed?

 

[VanGoghComplex]

Have you tried turning up the pump speed?

The DDC310 is a single-speed pump. IIRC, it's a silence-optimized DDC, so it's detuned compared to the top speeds of your regular DDC.

I could make it slower by cutting voltage, I think, but not faster.

 

[Deleted member 278999]

The DDC310 is a single-speed pump. IIRC, it's a silence-optimized DDC, so it's detuned compared to the top speeds of your regular DDC.

I could make it slower by cutting voltage, I think, but not faster.

Ah, yes that is what I was referring to and making sure that the pump is running properly.

60c is definitely a little high. I mean it's within reason but it shouldn't be THAT hot.

Have you tried repasting?

 

[VanGoghComplex]

Ah, yes that is what I was referring to and making sure that the pump is running properly.

60c is definitely a little high. I mean it's within reason but it shouldn't be THAT hot.

Have you tried repasting?

Haven't gone quite that far yet, but am considering it.

Does everything seem okay to you though, configuration wise? Should 140x3mm of rad be able to dissipate a single GPU system?

 

[Deleted member 278999]

Haven't gone quite that far yet, but am considering it.

Does everything seem okay to you though, configuration wise? Should 140x3mm of rad be able to dissipate a single GPU system?

I believe so. You'd want to look at the thermal dissipation of watts per radiator minus components, but yes it seems fine. The overclock will push you closer to that boundary that degrades proportionally though. But you should be square with what you've got. A 280 is pretty close to a 360 for reference, about 4kmm square below.

A lot depends on your ambient temperature. Have you tried ramping up your fans to full speed and retest? It could be that the pump isn't powerful enough. Not so much in gpm / lpm but head pressure and the ability for it to push to a certain height which I forget the name of.

 

[Chapeau]

I'd also agree - temp seems about right.

CPU temps might get a little lower if you delidded the CPU. I've read that this has something to do with the wattage you're putting through a tiny die that also lies under an IHS. Hence why delidding and using a liquid metal with 2-3x the thermal conductivity really helps with temperatures.

Conversely, the GPU die is not only quite large, but it is a bare die. No IHS to get in the way of heat transfer into the water block.

I found pretty consistently that my GPU ran nice and cool whilst the CPU ran far hotter. I had roughly the same temps until I switched from a PK-3 to CLU under the IHS. I'd say my average CPU temp dropped almost 10 degrees!
(I also found that my CPU cores were separated by larger temperature variations however. Maybe I would get better results if I had a play around with it. )

 

[VanGoghComplex]

I'd also agree - temp seems about right.

CPU temps might get a little lower if you delidded the CPU. I've read that this has something to do with the wattage you're putting through a tiny die that also lies under an IHS. Hence why delidding and using a liquid metal with 2-3x the thermal conductivity really helps with temperatures.

Conversely, the GPU die is not only quite large, but it is a bare die. No IHS to get in the way of heat transfer into the water block.

I found pretty consistently that my GPU ran nice and cool whilst the CPU ran far hotter. I had roughly the same temps until I switched from a PK-3 to CLU under the IHS. I'd say my average CPU temp dropped almost 10 degrees!
(I also found that my CPU cores were separated by larger temperature variations however. Maybe I would get better results if I had a play around with it. )

See, that's the problem though...

... I'm already delidded. XD